Incorporation by reference

Air Plan Partial Approval and Partial Disapproval; Missouri; Revision to Sulfur Dioxide Control Requirements for Lake Road Generating Facility

The Environmental Protection Agency (EPA) is taking final action to partially approve and partially disapprove revisions to the State Implementation Plan (SIP) submitted by the State of Missouri on February 17, 2022. In its submission, the Missouri Department of Natural Resources (MoDNR) requested that revisions to a 2016 Administrative Order on Consent (AOC) for controlling sulfur dioxide (SO<INF>2</INF>) emissions at the Lake Road power plant (hereinafter referred to as ``2016 AOC'') be approved in the SIP.

Publication Date: 
Monday, July 3, 2023 - 4:00am

Air Plan Revisions; California; Yolo-Solano Air Quality Management District

The Environmental Protection Agency (EPA) is taking final action to partially approve and partially disapprove a revision to the Yolo-Solano Air Quality Management District (YSAQMD) portion of the California State Implementation Plan (SIP). The revision concerns the YSAQMD's demonstration regarding reasonably available control technology (RACT) requirements for the 2008 8-hour ozone National Ambient Air Quality Standards (NAAQS or ``standards'') in the portion of the Sacramento Metropolitan nonattainment area under the jurisdiction of the YSAQMD.

Publication Date: 
Friday, June 30, 2023 - 4:00am

Approval, Limited Approval and Limited Disapproval of California Air Plan Revisions; Mojave Desert Air Quality Management District; Stationary Source Permits

The Environmental Protection Agency (EPA) is finalizing an approval and a limited approval and limited disapproval of revisions to the Mojave Desert Air Quality Management District (MDAQMD or ``District'') portion of the California State Implementation Plan (SIP). These revisions concern the District's New Source Review (NSR) permitting program for new and modified sources of air pollution under part D of title I of the Clean Air Act (CAA or ``Act''). This action updates the District's portion of the California SIP with ten revised rules.

Publication Date: 
Friday, June 30, 2023 - 4:00am

Air Plan Approval; State of Missouri; Confidential Information

The Environmental Protection Agency (EPA) is taking final action to approve a revision to the State Implementation Plan (SIP) for the State of Missouri. This final action will amend the SIP to approve a revision submitted by the State of Missouri on September 20, 2022, to the existing state rule, ``Confidential Information.'' These revisions include structural, formatting and other text changes that are administrative in nature and do not impact the stringency of the SIP or air quality.

Publication Date: 
Thursday, June 29, 2023 - 4:00am

Air Plan Approval; Montana; Revisions to Regional Haze State Implementation Plan and Partial Withdrawals to Regional Haze Federal Implementation Plan

The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision submitted by the State of Montana on March 25, 2020, addressing regional haze.

Publication Date: 
Monday, June 26, 2023 - 4:00am

Air Plan Approval; Tennessee; Revisions to Startup, Shutdown, and Malfunction Rules

The Environmental Protection Agency (EPA) is approving portions of a State Implementation Plan (SIP) revision submitted by the State of Tennessee, through the Tennessee Department of Environment and Conservation (TDEC), on November 19, 2016, as supplemented on January 20, 2023, in response to a finding of substantial inadequacy and SIP call published on June 12, 2015, regarding provisions in the Tennessee SIP related to excess emissions during startup, shutdown, and malfunction (SSM) events.

Publication Date: 
Friday, June 23, 2023 - 4:00am

Air Plan Approval; Virginia; Startup, Shutdown, and Malfunction Amendments to Facility and Control Equipment Maintenance or Malfunction Regulations

The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision submitted by the Commonwealth of Virginia. The revision pertains to several state regulatory changes affecting startup, shutdown and malfunction. This SIP revision was submitted in response to a finding of substantial inadequacy and SIP call published on June 12, 2015, for provisions in the Virginia SIP. EPA is approving these revisions to the Virginia SIP and determining that the SIP revision corrects the deficiencies in the Virginia SIP identified in the June 12, 2015 SIP call.

Publication Date: 
Thursday, June 22, 2023 - 4:00am

Air Plan Approval; Ohio; Proposed Approval of the Muskingum River SO2 Attainment Plan

The Environmental Protection Agency (EPA) is proposing to approve, under the Clean Air Act (CAA), a revision to the Ohio State Implementation Plan (SIP) intended to provide for attainment of the 2010 primary, health-based 1-hour sulfur dioxide (SO<INF>2</INF>) national ambient air quality standard (NAAQS or standard) for the Muskingum River SO<INF>2</INF> nonattainment area.

Publication Date: 
Thursday, June 22, 2023 - 4:00am

Air Plan Revisions; California; Mojave Desert Air Quality Management District; Oxides of Nitrogen

The Environmental Protection Agency (EPA) is finalizing a limited approval and limited disapproval a revision to the Mojave Desert Air Quality Management District (MDAQMD) portion of the California State Implementation Plan (SIP). This revision concerns emissions of oxides of nitrogen (NO<INF>X</INF>) from industrial, institutional, and commercial boilers, steam generators, and process heaters.

Publication Date: 
Friday, June 16, 2023 - 4:00am

Disapproval of Clean Air Plans; Sacramento Metro, California; Contingency Measures for 2008 Ozone Standards

The Environmental Protection Agency (EPA) is taking final action to disapprove under the Clean Air Act (CAA or ``Act''), state implementation plan (SIP) submissions from the State of California that address contingency measures requirements for the 2008 ozone national ambient air quality standards (NAAQS) in the Sacramento Metro, California ozone nonattainment area. The EPA is finalizing this disapproval because the SIP submissions do not provide for contingency measures that would be triggered if the area fails to attain the NAAQS or make reasonable further progress (RFP).

Publication Date: 
Thursday, June 15, 2023 - 4:00am

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